/*  smgen.c    CCMATH mathematics library source code.
 *
 *  Copyright (C)  2000   Daniel A. Atkinson    All rights reserved.
 *  This code may be redistributed under the terms of the GNU library
 *  public license (LGPL). ( See the lgpl.license file for details.)
 * ------------------------------------------------------------------------
 */
void smgen(double *a,double *eval,double *evec,int n)
{ double *p,*q,*ps,*r,*s,*t,*v=evec+n*n;
  for(ps=a,p=evec; p<v ;p+=n){
    for(q=evec; q<v ;q+=n,++ps){ *ps=0.;
      for(r=eval,s=p,t=q; r<eval+n ;)
        *ps+= *r++ * *s++ * *t++;
     }
   }
}